1252231237 has 16 divisors (see below), whose sum is σ = 1335664512. Its totient is φ = 1169925120.

The previous prime is 1252231231. The next prime is 1252231243. The reversal of 1252231237 is 7321322521.

It is an interprime number because it is at equal distance from previous prime (1252231231) and next prime (1252231243).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1252231237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252231231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2288998 + ... + 2289544.

It is an arithmetic number, because the mean of its divisors is an integer number (83479032).

Almost surely, 2^1252231237 is an apocalyptic number.

1252231237 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1252231237 is a deficient number, since it is larger than the sum of its proper divisors (83433275).

1252231237 is a wasteful number, since it uses less digits than its factorization.

1252231237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308.

The product of its digits is 5040, while the sum is 28.

The square root of 1252231237 is about 35386.8794470493. The cubic root of 1252231237 is about 1077.8579046222.

Adding to 1252231237 its reverse (7321322521), we get a palindrome (8573553758).

The spelling of 1252231237 in words is "one billion, two hundred fifty-two million, two hundred thirty-one thousand, two hundred thirty-seven".